The South Egan Range Wilderness protects the rugged,
bristlecone pine-studded mountain spine running nearly the entire length of the White River Valley. In the southern third of the Wilderness, Long Valley forms an open bowl between high mountain ridges. Rolling hills of
pinyon and
juniper forests and deep canyons of riparian vegetation round out the ecological and scenic diversity.[1] Angel Cave, a mostly-unexplored,
limestonepit cave, lies within the Wilderness at an elevation of approximately 9,000 feet (2,700 m).[2]